JPH09266450A - Video display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To display multiplexed data without losing an original video image by displaying the multiplexed data to part of an original video image in a scrolling way. SOLUTION: The video display device 10 converts prescribed page data of an FM multiplex broadcast program on a part of an area set to an upper part of a display screen of a CRT 7 in scroll while converting the page data into a display image. The display area on which the display image is displayed is a upper part of a display screen and the display image is made up of characters or graphics arranged in the lateral direction. Thus, characters are arranged in a long lateral direction on the display screen laterally long and characters of one row are arranged in the longitudinal direction to allow the viewer to view many more characters/graphics at once without losing the television video image. Thus, the television video image and the display image for the FM multiplex broadcast program are viewed simultaneously without losing the both.

Description

Detailed Description of the Invention

[0001]

[Table of Contents] The present invention will be described in the following order. TECHNICAL FIELD OF THE INVENTION Conventional Technology (FIGS. 17 and 18) Problems to be Solved by the Invention Means for Solving the Problems Embodiments of the Invention (1) First Example (FIGS. 1 to 8) (2) ) Second embodiment (Figs. 9 to 16) (3) Other embodiments Effect of the invention

[0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a video display device, and is applied to, for example, a video display device for demodulating information multiplexed with a radio broadcast wave of a frequency modulation method (FM modulation) and displaying it on a television screen. It is suitable.

[0003]

2. Description of the Related Art Conventionally, for example, by utilizing a frequency band that is not used in the frequency band of FM radio broadcast waves,
Characters such as news and weather forecasts and graphic information are broadcast as FM multiplex broadcast programs. As an apparatus for receiving the FM multiplex broadcast program and displaying it on the television screen, there is a video display apparatus 1 as shown in FIG.

That is, in FIG. 17, the image display device 1
Is a television reception circuit 2 via an antenna ANT1.
Receive TV Jiyoung program in China. The television reception circuit 2 detects the horizontal / vertical synchronization signal S _SYNC , the television video signal S _V1 and the television audio signal S from the detection output obtained by receiving the television broadcast wave.
_AU1 is extracted and demodulated.

The television video signal S _V1 is sent to the video / character superimposing circuit 4, and the television audio signal S _AU1 is sent.
Is sent to the voice switching circuit 5. Further, the horizontal / vertical synchronizing signal S received and demodulated in the television receiving circuit 2
_{The SYNC} is sent to a cathode ray tube (hereinafter referred to as CRT) 7 so that the CRT 7 is driven.

The FM multiplex decoder 3 has an antenna ANT.
The FM radio broadcast wave obtained via the
FM multiplex broadcast program data is extracted from M radio broadcast waves. Further, the FM multiplex decoder 3 converts the additional sound data included in the FM multiplex broadcast program data into a multiplex broadcast audio signal S _AU2 and sends this to the audio switching circuit 5, and at the same time, the characters / graphics included in the FM multiplex broadcast wave program data. F such as data
A display image representing M multiplexed data is displayed as a multiplexed broadcast video signal S.
_It is converted to _V2 and sent to the video / character superimposing circuit 4.

The video / character superimposing circuit 4 applies FM to the television video signal S _V1 obtained from the television receiving circuit 2.
The multiplex broadcast video signal S _V2 obtained from the multiplex decoder 3 is superposed on the basis of a user's instruction and is sent to the CRT 7. The audio switching circuit 5 switches between the television audio signal S _AU1 obtained from the television receiving circuit 2 and the multiple broadcast audio signal S _AU2 obtained from the FM multiplex decoder 3 based on a user's instruction and sends it to the speaker 8.

Thus, on the display screen of the CRT 7, the display image representing the character / graphic data of the FM multiplex broadcast program is superimposed on the image of the television multiplex broadcast, and the sound of the television multiplex broadcast and the sound of the FM multiplex broadcast program are output from the speaker 8. Are switched and output.

[0009]

In THE INVENTION It is an object to be solved the way the image display device 1 having such a configuration, when you watch simultaneously television broadcasting and FM multiplex broadcasting program, FM relative to the entire television picture PIC _TV as shown in FIG. 18 A display image PIC _MOJI showing characters / graphics of the multiple broadcast program is displayed in an overlapping manner. As a result, there is a problem that the television image PIC _TV is displayed on the background of the display image PIC _MOJI of the FM multiplex broadcast program, and both the display image PIC _MOJI and the television image PIC _TV are difficult to see.

The present invention has been made in consideration of the above points, and it is an object of the present invention to propose a video display device capable of easily viewing a television image and a display image of an FM multiplex broadcast program at the same time.

[0011]

In order to solve such a problem, according to the present invention, a storage means for storing multiplexed data superimposed on a predetermined broadcast wave and a predetermined video source are displayed on the display means. A superimposing means for cutting and superimposing a part of the multiplex data on a part of the original image and a cutout region of the multiplex data superimposed and displayed on a part of the original image for the whole or part of the multiplex data. Scroll means for scroll-displaying the multiplex data in a partial area of the original image by sequentially moving.

According to the present invention, the multiplex data can be displayed without damaging the original image by scrolling and displaying the multiplex data on a part of the original image.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings.

(1) First Embodiment In FIG. 1, reference numeral 10 denotes a video display device as a whole, and a television broadcast is received by a television receiver 20 of a television receiver circuit 12 via an antenna ANT1. . The television tuner 20 obtains the detected output from the television broadcast wave, and outputs this as a television broadcast reception signal S20 to the sync separation circuit 21, the video processing circuit 22 and the audio processing circuit 23, respectively.

The sync separation circuit 21 extracts the horizontal / vertical sync signal S _SYNC from the received signal S20 and sends it to the drive circuit 24 to drive the CRT 7 and send it to the display processing circuit 45. The video processing circuit 22 extracts the television video signal S _V1 from the received signal S20 and sends it to the video / character superimposing circuit 4. The audio processing circuit 23 also obtains a television audio signal S _AU1 by demodulating the television audio from the received signal S20 and sends it to the audio switching circuit 5.

On the other hand, the FM multiplex decoder 13 FM-transmits FM radio broadcast waves obtained via the antenna ANT2.
Received at the tuner 31. This FM tuner 31
Got its detection output from FM radio broadcast wave,
The radio broadcast reception signal S31 is output to the sampling circuit 32 and the audio demodulation circuit 33, respectively.

The sampling circuit 32 is an FM radio broadcast reception signal S.
The FM multiplex broadcast program data D _FM is extracted from 31 and stored in the FM multiplex data storage RAM (random access memory) 4
2 is stored. Here, the RAM 42 for storing FM multiplex data
The FM multiplex broadcast program data D _FM stored in is the coded data before being decoded (demodulated), and is 1
A plurality of pages are constructed by the page data D _PAGE for each page. Predetermined page data D designated by the microprocessor 35 among the plurality of page data
Figure 2 shows _PAGE1 as a character image. That is, FIG.
In, the page data D _PAGE1 is divided into eight lines of text by adding a line feed code to a series of texts.

[0018] When the page data D _PAGE1 is sent to Yotsute scroll memory 38 with a command from the microprocessor 35, the line feed code of the page data D _PAGE1 is removed. The page data D _PAGE1 stored in the scroll memory 38 is coded data before being decoded, and FIG. 3 shows a state in which the page data D _PAGE1 is represented by a character image. That is, in FIG. 3, page data D _PAGE1 is data in which a sentence for one page is represented by one line.

The page data D _PAGE1 thus stored in the scroll memory 38 is read by the horizontal scroll processing means 46 provided in the display processing circuit 45. That is, the horizontal scroll processing means 46 is configured as shown in FIG.
Of the page data D _PAGE1 as shown in FIG. 5, the read area data D as a cut area preset at the beginning of the sentence.
_READH1 is read out, decoded by the FM multiplex decoding circuit 34, and then stored in the display memory 47. At this time, the character / graphic data included in the read area data D _READH1 is the font ROM provided as the character generator.
It is converted into a character / graphic image by (read only memory) 41.

Incidentally, the characters of the page data D _PAGE1 stored in the scroll memory 38 are, for example, standard characters (vertical characters).
In the case of 24 dots and 16 _{dots horizontally} , the area of the read area data D _READH1 read from the scroll memory 38 is, for example, 24 _dots vertically, 248 _dots horizontally (1 row vertically, 15.5 horizontally).
Character).

The display processing circuit 45 receives the horizontal / vertical sync signal S _SYNC from the sync separation circuit 21 of the television receiver circuit 12.
By inputting, the read area data D _READH1 stored in the display memory 47 is sent to the video / character superimposing circuit 4 as a character / figure video signal S _READ synchronized with the television video. Further, the display processing circuit 45 displays the character graphic image signal S
_{At the} timing when _READ is sent, the timing signal S _T which rises to the logical “H” level is sent to the video / character superimposing circuit 4.

Accordingly, the video / character superimposing circuit 4 outputs a character graphic image to the television image signal S _V1 sent from the image processing circuit 22 of the television receiving circuit 12 while the timing signal S _T rises to the logic "H" level. Signal S
_READ is superimposed and sent to CRT7, and timing signal S _T
While it is falling to the logic "L" level, only the television video signal S _V1 is sent to the CRT 7. Thus, on the display screen of the CRT 7, as shown in FIG. 5, a display image P based on the read area data D _READH1 is _provided as a multiplexed data in a part of the television image PIC _TV as the original image.
IC _MOJIH1 are displayed in a combined in the display region AR _H at the top of the screen.

Here, when a predetermined time elapses after the horizontal scroll processing means 46 stores the first read area data D _READH1 including the beginning of a sentence from the scroll memory 38 into the display memory 47, the read from the scroll memory 38 is performed. Move the region one dot to the right. In this way, the reading area in the scroll memory 38 is shifted to the right by one dot in a predetermined cycle, and is read out and stored in the display memory 47, so that the character graphic image signal S _READ output from the display processing circuit 45 is in one line. The read-out area of the page data D _PAGE1 becomes a signal representing a character / graphic scrolled right by one dot in a predetermined cycle.

[0024] Incidentally Figure 6 shows a first read area data D _READH1 from 112 dots read area data D _READH112 moved including beginning of a sentence part of the page data D _PAGE1 represented by one line stored in the scroll memory 38, C at this time
The image displayed on the display screen of the RT7 becomes a display image PIC _MOJIH112 corresponding to the read area data D _READH112 as shown in FIG.

[0025] Some of the display screen of the thus CRT7 is one line of the page data D _PAGE1 stored in the scroll memory 38 is displayed being scrolled to the right from the beginning of a sentence portion sequentially one by one dots in a predetermined region unit .

The additional sound data included in the FM multiplex data of the predetermined page of the FM multiplex broadcast program designated by the user is added by the additional sound decoder 39 to the additional sound audio signal S _AU2.
Is converted to the voice switching circuit 43 and sent to the voice switching circuit 43. The audio switching circuit 43 _{selectively switches the} FM audio signal S _AUFM and the additional sound audio signal S _AU2 sent from the audio demodulation circuit 33 according to a command from the microprocessor 35, and sends this to the audio switching circuit 5. To do. The voice switching circuit 5 is the main control unit 25.
Command, the output of the audio switching circuit 43 or the television audio signal S _AU1 is selectively switched and sent to the speaker 8.

Incidentally, the main control section 25 of the television reception circuit 12 is operated when the user inputs a predetermined command through the remote control signal reception circuit 28 by operating the remote commander 26, or when the user operates the panel key 27. When a predetermined command is input by operating the, the television receiver circuit 12 is controlled on the basis of the command, and the microprocessor 35 of the FM multiplex decoder 13 allows the user to operate the remote commander 26. When a predetermined command is input through the remote control signal receiving circuit 28 by operating the, or when the user inputs a predetermined command by operating the panel key 27, the FM multiplexing is performed based on the command. The decoder 13 is controlled.

Therefore, when the user selects a specific page of the FM multiplex broadcast program by using the remote commander 26 or the panel key 27, the data of the page designated by the user is displayed by the main controller 25 and the microprocessor 35. CR
On the display screen of T7, it is synthesized with the television image PIC _TV and scroll-displayed, and an additional sound added to the FM multiplex broadcast is generated from the speaker 8.

When the user operates the remote commander 26 or the panel key 27 to specify that only the television broadcast should be received, the main control section 25 controls the video / character superimposing circuit 4 and the audio switching circuit 5. , CRT
Only the television image PIC _TV is displayed on the display screen 7 and only the television broadcast sound is emitted from the speaker 8.

[0030] In the above configuration, display the predetermined page data D _PAGE1 FM multiplex broadcast programs some video display device 10 is set thereon the display screen of CRT7 region (display region AR _H) Image PIC _MOJIH (PI
C _MOJIH1 , ……, PIC _MOJIH112 ……) and scroll display. Display region AR _H where the display image is displayed is the top of the display screen, also displayed image formed by arranging a character or a figure in the transverse direction. Therefore, by arranging the characters in a long horizontal direction on the horizontally long display screen and arranging the characters in only one line in the vertical direction, more characters can be displayed to the viewer without damaging the television image PIC _TV. / Figures are displayed at once.

Thus, according to the above configuration, the display image PI of the television image PIC _TV and the FM multiplex broadcast program is displayed.
You can see C _MOJIH at the same time without losing any of them.

In the above embodiment, the case where the display image PIC _MOJIH of the FM multiplex broadcast program is displayed on the upper part of the display screen has been described, but the present invention is not limited to this, and as shown in FIG. display of FM multiplex broadcasting program image PIC _MOJIH (PIC _MOJIH1, ......) may be provided with a display area AR _H of the bottom of the display screen.

In the above embodiment, the display image PI of the FM multiplex broadcast program is displayed on the television image PIC _TV.
It has dealt with the case where the C _MOJIH synthesizing (superimposing), the present invention is not limited to this, for example, a television picture PIC _TV as a background in the display region AR _H of the display image PIC _MOJIH 8 White Alternatively, the background may have a uniform black level. In this way, the display image PIC _MOJIH can be made _easier to see.

In the above embodiment, the case where the read area data D _READH of _{24 dots} vertically and 248 _dots horizontally (1 line vertically, 15.5 characters horizontally) is displayed on the screen has been described, but the present invention is not limited to this. Alternatively, various other area areas may be applied.

(2) Second Embodiment FIG. 9 in which parts corresponding to those in FIG. 1 are assigned the same reference numerals shows a second embodiment of a video display device according to the present invention, in which the video display device 50 has a sampling circuit 32. FM radio broadcast reception signal S
The FM multiplex broadcast program data D _FM is extracted from 31 and stored in the FM multiplex data storage RAM (random access memory) 4
2 is stored. Here, the RAM 42 for storing FM multiplex data
The FM multiplex broadcast program data D _FM stored in is the coded data before being decoded (demodulated), and is 1
A plurality of pages are constructed by the page data D _PAGE for each page.

Of the plurality of page data, predetermined page data D designated by the microprocessor 35
_PAGE1 is shown as a character image in FIG. That is, in FIG. 10, page data D _PAGE1 is divided into sentences of 8 lines per page by adding a line feed code and a page break code to a series of sentences.

[0037] When this page data D _PAGE1 is sent to Yotsute scroll memory 58 with a command from the microprocessor 35, the page data D _PAGE1 which is the designated
The page break code is removed from the subsequent page data. A series of page data D _PAGE stored in the scroll memory 58 are coded data before being decoded, the page data D _PAGE1 corresponding to one page of the beginning of the page data D _PAGE with character image The state shown is shown in FIG. That is, in FIG. 11, the page data D _PAGE1 is divided into a plurality of unit sentences by breaking a sentence of one page with a line feed code.

The page data D _PAGE1 thus stored in the scroll memory 58 is read by the vertical scroll processing means 56 provided in the display processing circuit 55. That is, the vertical scroll processing means 56 is similar to that shown in FIG.
Of the page data D _PAGE1 as shown in 2, read-out area data D as a cut-out area preset at the beginning of the sentence.
_READV1 is read out, decoded by the FM multiplex decoding circuit 34, and then stored in the display memory 47. At this time, the character / graphic data included in the read area data D _READV1 is the font ROM provided as the character generator.
It is converted into a character / graphic image by 41.

Incidentally, the characters of the page data D _PAGE1 stored in the scroll memory 58 are, for example, standard characters (vertical characters).
In the case of 24 dots and 16 _{dots horizontally} , the area of the read area data D _READV1 read from the scroll memory 58 is, for example, 48 _dots vertically and 248 _dots horizontally (2 rows vertically, 15.5 horizontally).
Character).

The display processing circuit 55 receives the horizontal / vertical sync signal S _SYNC from the sync separation circuit 21 of the television receiver circuit 12.
By inputting, the read area data D _READV1 stored in the display memory 47 is sent to the video / character superimposing circuit 4 as a character / graphics video signal S _READ synchronized with the television video. Further, the display processing circuit 55 uses the character graphic image signal S
_{At the} timing when _READ is sent, the timing signal S _T which rises to the logical “H” level is sent to the video / character superimposing circuit 4.

Accordingly, the video / character superimposing circuit 4 outputs a character / graphic image to the television image signal S _V1 sent from the image processing circuit 22 of the television receiving circuit 12 while the timing signal S _T rises to the logic "H" level. Signal S
_READ is superimposed and sent to CRT7, and timing signal S _T
While it is falling to the logic "L" level, only the television video signal S _V1 is sent to the CRT 7. Thus, on the display screen of the CRT 7, as shown in FIG. 13, a display image PIC _MOJIV1 based on the read area data D _READV1 is _combined as a multiplexed data in a part of the telescopic video PIC _TV as the original video in the display area AR _V at the top of the screen. Is displayed.

Here, when the vertical scroll processing means 56 stores the first read area data D _READV1 including the head portion of the sentence from the scroll memory 58 in the display memory 47, a predetermined time elapses, and then the reading is read from the scroll memory 58. Move region one dot down. As described above, the character read / write image signal S _READ output from the display processing circuit 55 is output as a series of pages by shifting the reading area in the scroll memory 58 downward by one dot at a predetermined cycle and reading the read area and storing it in the display memory 47. The read area of the data D _PAGE becomes a signal representing a character / graphic scrolled down by one dot in a predetermined cycle.

[0043] Incidentally Figure 14 shows a read area data D _READV12 the vertically moved from the first read area data D _READV1 under 12 dots including beginning of a sentence part of the page data D _PAGE stored in the scroll memory 58, in this case As shown in FIG. 15, the image displayed on the display screen of the _{CRT 7} is a display image PIC corresponding to the read area data D _READV12.
It will be _MOJIV12 .

As described above, the page data D stored in the scroll memory 58 is displayed on a part of the display screen of the CRT 7.
_{The PAGE} is scrolled down one dot at a time from the beginning of the sentence in predetermined area units and displayed.

The additional sound data included in the FM multiplex data of a predetermined page of the FM multiplex broadcast program designated by the user is converted into an additional sound audio signal by the additional sound decoder 39 and sent to the audio switching circuit 43. . Voice switching circuit 4
3 is an FM audio signal S sent from the audio demodulation circuit 33.
_AUFM and additional sound audio signal S _AU2 are processed by the microprocessor 3
5 is selectively switched according to the command of 5, and this is sent to the voice switching circuit 5. The audio switching circuit 5 selectively switches the output of the audio switching circuit 43 or the television audio signal S _AU1 according to a command from the main control unit 25 and sends it to the speaker 8.

Incidentally, the main control section 25 of the television reception circuit 12 is operated when the user inputs a predetermined command through the remote control signal reception circuit 28 by operating the remote commander 26, or when the user operates the panel key 27. When a predetermined command is input by operating the, the television receiver circuit 12 is controlled on the basis of the command, and the microprocessor 35 of the FM multiplex decoder 13 allows the user to operate the remote commander 26. When a predetermined command is input through the remote control signal receiving circuit 28 by operating the, or when the user inputs a predetermined command by operating the panel key 27, the FM multiplexing is performed based on the command. The decoder 13 is controlled.

Therefore, when the user selects a specific page of the FM multiplex broadcast program using the remote commander 26 or the panel key 27, the data of the page specified by the user is displayed by the main control unit 25 and the microprocessor 35. CR
On the display screen of T7, it is synthesized with the television image PIC _TV and scroll-displayed, and an additional sound added to the FM multiplex broadcast is generated from the speaker 8.

When the user operates the remote commander 26 or the panel key 27 to specify that only the television broadcast should be received, the main controller 25 controls the video / character superimposing circuit 4 and the audio switching circuit 5. , CRT
Only the television image PIC _TV is displayed on the display screen 7 and only the television broadcast sound is emitted from the speaker 8.

In the above-mentioned structure, the video display device 50 starts the predetermined page data D _PAGE1 of the FM multiplex broadcast program in the partial area (display area AR _V ) set on the upper part of the display screen of the CRT 7 and thereafter. Page data D
_PAGE images are displayed sequentially PIC _MOJIV (PIC _MOJIV1 ,
..., PIC _MOJIV12 , ...) is converted to vertical scroll display. Display area A where this display image is displayed
R _V is the upper part of the display screen, and the display image is vertically scrolled while line-feeding characters or graphics arranged in the horizontal direction in predetermined units. Therefore, on a horizontally long display screen, characters or graphics are arranged in the long horizontal direction in units of line feeds, and by vertically arranging only two lines of characters / graphics,
More characters / graphics are displayed to the viewer at one time without impairing the television image PIC _TV .

Thus, according to the above configuration, the display image PI of the television image PIC _TV and the FM multiplex broadcast program.
You can watch C _MOJIV at the same time without losing any of them.

In the above embodiment, the case where the display image PIC _MOJIV of the FM multiplex broadcast program is displayed on the upper part of the display screen has been described, but the present invention is not limited to this, and as shown in FIG. 16, for example. Display image of FM multiplex broadcast program PIC _MOJIV (PIC _MOJIV1 , ..., PIC
The display area AR _V of _MOJIV12 , ...) _May be provided at the bottom of the display screen.

In the above embodiment, the display image PI of the FM multiplex broadcast program is displayed on the television image PIC _TV.
The case of synthesizing (superimposing) C _MOJI has been described, but the present invention is not limited to this. For example, in the display area AR _V of the display image PIC _MOJIV , the background television image PIC _TV is displayed in white. Alternatively, the background may have a uniform black level. In this way, the display image PIC _MOJIV can be made even _easier to see.

[0053] In the above-described embodiments, when the page data D _PAGE1 is sent to Yotsute scroll memory 58 with a command from the microprocessor 35, for all of the page data of the page data D _PAGE1 since that is the designated Although the case where the page break code is removed has been described, the present invention is not limited to this, and the page break code may be left for each page and only the designated page data may be scroll-displayed.

In the above embodiment, the case where the read area data D _READV of _{48 dots} vertically and 248 _dots horizontally (2 rows vertically and 15.5 characters horizontally) is displayed on the screen has been described, but the present invention is not limited to this. Alternatively, various other area areas may be applied.

(3) Other Embodiments In the above embodiments, the case where the read area of the read area data D _READH or D _READV is moved by one _{dot in} the horizontal or vertical direction has been described. The number of dots is not limited to this, and various dots can be applied as the amount of movement, such as moving by two dots.

In the above embodiment, the present invention is
The case where the multiplex data of the M multiplex broadcast program is combined (superposed) with the television projection video has been described, but the present invention is not limited to this. For example, predetermined character data is generated by utilizing the vertical blanking period of the television projection signal. It can be widely applied to a case where multiplexed data such as multiplexed teletext is composite-displayed on a display screen.

Further, in the above-mentioned embodiment, the case where the multiplex data is synthesized and displayed on the television image is described, but the present invention is not limited to this, and the multiplex data is added to the reproduced video image reproduced from the video tape recorder. Various other sources may be applied to the video source such as a case of synthesizing.

[0058]

As described above, according to the present invention, since the multiplex data is scroll-displayed on a part of the display screen on which the original image is displayed, both the original image and the multiplex data can be viewed without a feeling of strangeness. A video display device that can be provided to a person can be realized.

[Brief description of drawings]

FIG. 1 is a block diagram showing a first embodiment of an image display device according to the present invention.

FIG. 2 is a schematic diagram showing page data in a RAM.

FIG. 3 is a schematic diagram showing page data in a scroll memory.

FIG. 4 is a schematic diagram showing a read area read from a scroll memory.

FIG. 5 is a schematic diagram showing a character / graphic image on a display screen.

FIG. 6 is a schematic diagram showing a reading area which is horizontally moved by 112 dots.

FIG. 7 is a schematic diagram showing a character / graphic image of a display screen.

FIG. 8 is a schematic diagram showing a display screen according to another embodiment.

FIG. 9 is a block diagram showing a second embodiment of the image display device according to the present invention.

FIG. 10 is a schematic diagram showing page data in a RAM.

FIG. 11 is a schematic diagram showing page data in a scroll memory.

FIG. 12 is a schematic diagram showing a read area read from a scroll memory.

FIG. 13 is a schematic diagram showing a character / graphic image on a display screen.

FIG. 14 is a schematic diagram showing a reading area vertically moved by 12 dots.

FIG. 15 is a schematic diagram showing a character / graphic image on a display screen.

FIG. 16 is a schematic diagram showing a display screen according to another embodiment.

FIG. 17 is a block diagram showing a conventional image display device.

FIG. 18 is a schematic diagram showing a display screen according to a conventional example.

[Explanation of symbols]

4 ... video / character superimposing circuit, 5 ... audio switching circuit, 7 ...
... cathode ray tube, 8 ... speaker, 10, 50 ... video display device, 12 ... television receiving circuit, 13 ... FM multiplex decoder, 34 ... FM multiplex decoding circuit, 38, 5
8: scroll memory, 39: additional sound decoder, 4
1 ... Font ROM, 42 ... FM multiple data storage RAM, 45, 55 ... Display processing circuit, 46 ... Horizontal scroll processing means, 47 ... Display memory, 56 ... Vertical scroll processing means

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Kenichi Tsuchiya 6-735 Kitashinagawa, Shinagawa-ku, Tokyo Sony Corporation

Claims (7)

[Claims] 1. Storage means for storing multiplex data superimposed on a predetermined broadcast wave, and part of the multiplex data in a partial area of an original image displayed on a display means by a predetermined image source. Part of the original image by cutting and superimposing means for superimposing and sequentially moving the cutout region of the multiplex data superimposed and displayed in a partial region of the original image over the whole or part of the multiplex data. And a scroll means for scroll-displaying the multiplex data in the area of FIG. 2. The superimposing means superimposes the data of the cutout area of the multiplex data in a partial area of the original image in the data order in the lateral direction as a character and / or graphic string. 1. The video display device according to 1. 3. The superimposing means superimposes the data of the cutout area of the multiplex data in a partial area of the original image in the data order in the lateral direction as a character and / or graphic string over a plurality of rows. The image display device according to claim 1, wherein the image display device is a display device. 4. The video display device according to claim 1, wherein a partial area of the original video in which a part of the multiplex data is displayed is an upper portion in a display screen of the display means. . 5. The image display device according to claim 1, wherein a part of the original image in which a part of the multiplex data is displayed is a lower part of the display screen of the display means. . 6. The video display device according to claim 1, wherein the multiplexed data is multiplexed with the frequency-modulated broadcast wave. 7. The video display device according to claim 1, wherein the original video is a television video broadcast from a predetermined broadcasting station.